Enable 850mHZ on SE K800i - GSM-Forum

ExTrEmE99 · 01-08-2007, 03:16

Hello, Is there any way to get the 850 Band on the Sony ericsson K800? Hardware modification? Main board swapping? Software enabling 850? I mainly need 850-1900 bands but i got a hell of a deal for the k800i Silver special edition for 275.00USD

luzer · 01-08-2007, 06:26

The phone is already quadband, GSM 900/1800/1900/UMTS

ExTrEmE99 · 01-08-2007, 06:28

I mainly need GSM 850. In fact the phone is Tri-Band. I mainly need 850 and 1900

luzer · 01-08-2007, 17:53

The phone is also UMTS (quadband), if you need 850 go for the K790a

ExTrEmE99 · 01-08-2007, 23:34

Like i said i got the K800i for only$275 why would i pass on such a good deal?

ExTrEmE99 · 04-17-2007, 05:34

So what is the difference from the K800i and K790a main board? or is it just software or something?

luzer · 04-17-2007, 16:44

Hardware support for UMTS (2100mhz) instead 850mhz.

mrfixit · 10-21-2008, 17:26

he wants 850 not 2100!

ExTrEmE99 · 10-21-2008, 23:30

Way to bump a old thread haha

That phone is LONG GONE now. I sold it

mrfixit · 10-22-2008, 11:46

I was looking for the same, thats why I found this thread, I wrote script into k800 for 850-900-1800-1900
test menu shows all 4 bands but need to test if it is true.
script was text file in misc folder with gdfswrite:000000AC12 like manual in setool support forum:
make gdfs backup 1st.
----------------------
Create and execute the following script:
gdfswrite:000000ACXX

Set XX to whatever corresponds to your phones bandlock:

Code:
;00 MS_GSM900
;01 MS_EGSM900
;02 MS_DCS1800
;03 MS_PCS1900
;04 MS_GSM900_DCS1800
;05 MS_EGSM900_DCS1800
;06 MS_GSM900_PCS1900
;07 MS_EGSM900_PCS1900
;08 MS_DCS1800_PCS1900
;09 MS_GSM900_DCS1800_PCS1900
;0a MS_EGSM900_DCS1800_PCS1900
;0b MS_GSM850
;0c MS_GSM850_PCS1900
;0d MS_EGSM900_GSM850
;0e MS_DCS1800_GSM850
;0f MS_EGSM900_DCS1800_GSM850
;10 MS_EGSM900_GSM850_PCS1900
;11 MS_DCS1800_GSM850_PCS1900
;12 MS_EGSM900_DCS1800_GSM850_PCS1900

crisnspro · 10-23-2008, 05:54

impossible, the hardware will NOT support the GSM850

mrfixit · 10-23-2008, 12:21

I read somewhere that k800 has actually hardware for 850/900/1800/1900, and if it is for u.s. market then 850/1800/1900 is enabled and if it is for euro and asia market then 900/1800/1900 is enabled. So I enabled all 4 bands via script and will see if it works or not in very short time. test menu shows all 4 bands now, but need to field test it too and post here asap.

so dont say impossible b4 test.

crisnspro · 10-23-2008, 16:26

Quote:

Originally Posted by mrfixit

I read somewhere that k800 has actually hardware for 850/900/1800/1900, and if it is for u.s. market then 850/1800/1900 is enabled and if it is for euro and asia market then 900/1800/1900 is enabled. So I enabled all 4 bands via script and will see if it works or not in very short time. test menu shows all 4 bands now, but need to field test it too and post here asap.

so dont say impossible b4 test.

that is K790, not K800

mrfixit · 10-23-2008, 17:05

k790 k800 does not matter, same hardware.

I have all 4 bands operating here and so far it works ok on 850 mhz, it looks like u are wrong and I am right,

but I will post if not ok here, since I have to do some more field testing.

01-08-2007, 03:16	#1 (permalink)
ExTrEmE99 No Life Poster Join Date: Jan 2006 Location: US Posts: 787 Member: 216515 Status: Offline Thanks Meter: 4	Enable 850mHZ on SE K800i Hello, Is there any way to get the 850 Band on the Sony ericsson K800? Hardware modification? Main board swapping? Software enabling 850? I mainly need 850-1900 bands but i got a hell of a deal for the k800i Silver special edition for 275.00USD

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01-08-2007, 06:26	#2 (permalink)
luzer No Life Poster Join Date: Nov 2003 Location: GT Posts: 2,802 Member: 44659 Status: Offline Thanks Meter: 363	The phone is already quadband, GSM 900/1800/1900/UMTS

01-08-2007, 06:28	#3 (permalink)
ExTrEmE99 No Life Poster Join Date: Jan 2006 Location: US Posts: 787 Member: 216515 Status: Offline Thanks Meter: 4	I mainly need GSM 850. In fact the phone is Tri-Band. I mainly need 850 and 1900

01-08-2007, 17:53	#4 (permalink)
luzer No Life Poster Join Date: Nov 2003 Location: GT Posts: 2,802 Member: 44659 Status: Offline Thanks Meter: 363	The phone is also UMTS (quadband), if you need 850 go for the K790a

01-08-2007, 23:34	#5 (permalink)
ExTrEmE99 No Life Poster Join Date: Jan 2006 Location: US Posts: 787 Member: 216515 Status: Offline Thanks Meter: 4	Like i said i got the K800i for only$275 why would i pass on such a good deal?

04-17-2007, 05:34	#6 (permalink)
ExTrEmE99 No Life Poster Join Date: Jan 2006 Location: US Posts: 787 Member: 216515 Status: Offline Thanks Meter: 4	So what is the difference from the K800i and K790a main board? or is it just software or something?

04-17-2007, 16:44	#7 (permalink)
luzer No Life Poster Join Date: Nov 2003 Location: GT Posts: 2,802 Member: 44659 Status: Offline Thanks Meter: 363	Hardware support for UMTS (2100mhz) instead 850mhz.

10-21-2008, 17:26	#8 (permalink)
mrfixit No Life Poster Join Date: Apr 2004 Location: MOON Posts: 5,858 Member: 60899 Status: Offline Thanks Meter: 792	he wants 850 not 2100!

10-21-2008, 23:30	#9 (permalink)
ExTrEmE99 No Life Poster Join Date: Jan 2006 Location: US Posts: 787 Member: 216515 Status: Offline Thanks Meter: 4	Way to bump a old thread haha That phone is LONG GONE now. I sold it

10-22-2008, 11:46	#10 (permalink)
mrfixit No Life Poster Join Date: Apr 2004 Location: MOON Posts: 5,858 Member: 60899 Status: Offline Thanks Meter: 792	I was looking for the same, thats why I found this thread, I wrote script into k800 for 850-900-1800-1900 test menu shows all 4 bands but need to test if it is true. script was text file in misc folder with gdfswrite:000000AC12 like manual in setool support forum: make gdfs backup 1st. ---------------------- Create and execute the following script: gdfswrite:000000ACXX Set XX to whatever corresponds to your phones bandlock: Code: ;00 MS_GSM900 ;01 MS_EGSM900 ;02 MS_DCS1800 ;03 MS_PCS1900 ;04 MS_GSM900_DCS1800 ;05 MS_EGSM900_DCS1800 ;06 MS_GSM900_PCS1900 ;07 MS_EGSM900_PCS1900 ;08 MS_DCS1800_PCS1900 ;09 MS_GSM900_DCS1800_PCS1900 ;0a MS_EGSM900_DCS1800_PCS1900 ;0b MS_GSM850 ;0c MS_GSM850_PCS1900 ;0d MS_EGSM900_GSM850 ;0e MS_DCS1800_GSM850 ;0f MS_EGSM900_DCS1800_GSM850 ;10 MS_EGSM900_GSM850_PCS1900 ;11 MS_DCS1800_GSM850_PCS1900 ;12 MS_EGSM900_DCS1800_GSM850_PCS1900

10-23-2008, 05:54	#11 (permalink)
crisnspro Crazy Poster Join Date: Jan 2007 Posts: 55 Member: 427288 Status: Offline Thanks Meter: 4	impossible, the hardware will NOT support the GSM850

10-23-2008, 12:21	#12 (permalink)
mrfixit No Life Poster Join Date: Apr 2004 Location: MOON Posts: 5,858 Member: 60899 Status: Offline Thanks Meter: 792	I read somewhere that k800 has actually hardware for 850/900/1800/1900, and if it is for u.s. market then 850/1800/1900 is enabled and if it is for euro and asia market then 900/1800/1900 is enabled. So I enabled all 4 bands via script and will see if it works or not in very short time. test menu shows all 4 bands now, but need to field test it too and post here asap. so dont say impossible b4 test.

10-23-2008, 17:05	#14 (permalink)
mrfixit No Life Poster Join Date: Apr 2004 Location: MOON Posts: 5,858 Member: 60899 Status: Offline Thanks Meter: 792	k790 k800 does not matter, same hardware. I have all 4 bands operating here and so far it works ok on 850 mhz, it looks like u are wrong and I am right, but I will post if not ok here, since I have to do some more field testing.